Reply To: Print Shifting on Y Axis

An update , I eventually changed from A4988 to DRV8825 Stepper Motor Drivers on my Ramps 1.4 board , immediately I noticed how strong the holding torque was on all axis’ compared to the A4988’s. After many test prints later no print shifts have occurred at all. I think the 2A steppers I had were not able to be driven fully by the A4988 for some reason , this even after many times of setting the vref pots according to the datasheet formulae. I also don’t get any problem with heating of the steppers so that’s also comforting. All in all I’m very happy with my setup and the novel design of the MPCNC. Already I’m looking forward to some wood carving and some Aluminium chips creation. Regards Jim